[R-sig-ME] How to compute heritabilities on binomial response variables...
rudy.garel at unil.ch
Fri Dec 7 12:40:01 CET 2012
I am working on Atlantic salmon embryos and I wondered if anyone knows
how to compute heritabilities on binomial response variables like survival?
Here is the model that I use to extract the variance components on a
gaussian response variable (cf R book, p.640):
... where "Fem" is the female or mother effect, "Mal" the male or father
effect and "Inc" the incubator effect.
And so I tried to extract the variance components on a binomial response
variable drawing inspiration of this model as follows:
The problem with this last model is that it does not give me the
residual variance (which is normal with binomial data) and so I can not
Does anyone know an approach on R to compute heritabilities on binomial
Thanks in advance for paying attention to this mail.
Rudy Garel, PhD Student
Department of Ecology and Evolution, Biophore Building
University of Lausanne, CH-1015 Lausanne, Switzerland
Phone: +41 (0)21 692 41 76
-------------- next part --------------
A non-text attachment was scrubbed...
Name: R book p640.pdf
Size: 230985 bytes
Desc: not available
More information about the R-sig-mixed-models